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To all 'whom z't lmay concern: Y

Be it known that T, OnMoND E. HUNT, a citizen ofthe United States, and residentbf Detroit, Wayne County, State olf/Michigan, have invented certain new-.and useful Tmprovements in Motor Vehicles, of whichthe following is a specification. -y

This invention relates to motor vehicles 'l and particularly tothe water'circulation systems thereof; v Y

'More articularlyv the invention embodies a valve evice ,or valve u'nit inwhich there is a thermostat adapted to operate the valve or valves.'

Une' of the objects ofthe invention is to` vice in which one of the vvalves is a nonseating valve thus making thevalve and its port much easier to machine and ermitting an advantageous arrangement o ports vin the valve casing.

. Another object of the invention is to provide a valve unit in which the casinghas two outlet ports, one of which is larger than Y the other andboth of which are controlled bil) by valves closing against. the direction" ot How. By this arrangement, when the valve deviceis mounted as shown in the drawings herein, there is a greater tendency of the water owing throughthe casing fto open the larger port which permits the wa- I ter to pass into the radiator.

Other objects of the invention will appear from the following description takenin con- -nection with the drawings which form a part of this specication, and in which Fig. 1 is a vertical section through a valve device built in accordance with this invention and a part of the radiatorof a motorY the upper part of the core of the radiator which is positioned below the tank 10. A casing 13 surrounds the tank part ot the radiator for .the purpose of protecting the -Y tank and addingto the general appearance of the radiator.

- The `valve devicey orunit which forms the principal subjects-matter of this invention comprises three principalv parts, as follows a casing 14, a valve member 15, and

-a thermostat 16. The casing 14': has an inlet opening or port 1f( whereby it receives the circulation-water from the vehicle motor through a pipe 18 which is detachably connected to the casing as by bolts 19. A circular opening 20 is` formed. in the rear face of the tank 10 ot the radiator and a soft metal collar 21 is mounted therein and preferably lsecured to the tank as by soldering for the purpose of receiving. the cylindrical part 22 of the casing 1t. Thus the cylindrical part of the casing is inserted in the collar 21 until its ange 23 abuts against thefcollar 21 and it is then detachably secured to the collar asby a series of bolts 2t. This secures a tight joint between the casing andthe tankV 10 and securely rnountsV the valve unit in the central part .ot the tank under the iller tube 11. A bams 25 is shown in the drawing to prevent the water issuing from the forward end of the valve casing .from splashing up into the ller tube.

The valve casing 14k is formed with two outlets, the large or main outlet 26 which permits water to How from the casing directly into the tank 10 and from` thence downwardly through the core 12 of the radiator, and the small or auxiliary outlety 27 nearer the rear end of the casing, which latter outlety is in the nature of a, by-pass adapted to ass around the radiator so that the water of) the circulation system may pass back to the motor, preferably through the pump, without passing through the radiator and being cooled thereby. The circular opening indicated at 28 may be termed the` outlet port and it will be seen that the wall 29 of the chamber 30 which forms part ot the outlet 27 and is positioned within the casing 14, are supported therein by several ribs 31 past which the Water Hows from the inlet 17 to the main outlet or and the' auxiliary outlet port 28. There` are also leakage ports 32 at the forward end et the casing 14k through which a small quanrateatee ret. er, rete.

port 26 tity offwater may pass even though the main.

outlet 26 is otherwise closed. The valve member y above referred to is in the form of a cage with valves at its' ends. The forward part of the cage is in the form of a disk or poppetvalve 33 adaptedtoclose the outlet 26 when the valve is in the position shown in Fig. 1. When the valve is moved forwardly as shown in Fig. 2, openings 34 in the cage permit the water to pass out through the port 26 into the tank 10, and during this `movement of the -valve the forward end "of the cage is guided by the walls of the port 2 6. The rear part of the valve member l5 has a valve 35 connected to it as byv a spider 36 threaded into the rear end of the cage part`of the valve member. This valve is slightly smaller than the port 28 in which it operates and it is mounted to slide upon or is guided by la rod 37 which is rigidl secured to 'the casing 14 as at 38. This ro 37 passes through the port 28and is connected at its forward end to the rear end of the thermostat 16 above referred to,

thus supporting the thermostat and facilitating'the assembly of the unit. The valveand thermostat may be removed fromy the casing by removing a nut 39 by which the rod 37 is secured to the casing (see Fig. 2).

The'thermostat `16 is mounted .within the cage part of the valve member 15, being inserted therein .before the spider 36 is secured to the cage,'and the forward end of the ther'- mostat is secured to the valve member by means of a stud 40 and nut 41.

It will be understood Vthat the thermostatl Y 16 contains a fiuidsuch as alcohol or ether and that when cold it is in the contracted state shown in F ig. 1.' The valve 33 is then closed on its seat so that .the waterwill not flow intothe tank 10 except such as mayv 'y pass through the several leakage ports 32,

and the valve 35 is wide open so that water will readily pass through theport 28 and outlet 27 into the by-pass above referred to.

v Asv the temperature of the water inthe tank 10 and to the radiator core 12, and the circulationsystem is raised due to the operation of the vehicle motor, the thermostat 16 expands to the position in which it is shown in Fig. 2 and the'valve 33 is Wide open to permit thewater to pass into the valve 35 haslbeen moved against the direction of ow of the water through the port` 28 to a position in that port so that it practically fills the opening and prevents the further vflow of water therethrough. It will be seen that since the valve 35 is slightly smaller than the port 28 there may still be a small amount of leakage through that port,l

which in the operation of the vehicle is immaterial. By making this valve and port of this form however, these parts may be readily machined and with suiiciently wide limits. to insure cheap production. rrMoreover in the arrangement shown there Jis little or no danger of the valves becoming clogged by dirt as they are more or less self cleaning.

As shown, the expansion of the thermostat 16 or the forward movement of the `valve member 15 is limited bythe spider 36 con-v tacting with the rear end of the thermostat 16 as at 42. This stopping or limiting of the valve member insures the proper positioning of the valve 35 inthe port 28 at' a predetermined water temperature.

But a single form of the invention isshown and described herein. However it will be understood that other forms and therethrough, and a. thermostat connected to said valves so that the valve for the larger port is held shut and the valve for the smaller port is held open by the thermostat when the latter is cold'and the expansion of the thermostat causes an opening action of the valve for theA larger port and a closing action of the valve for the smaller port.

2. A thermostat valve unit comprising a casing having an inlet andtwo outlet openings, one of said outlet ports being appreciably larger than the other, valves for said outlet openings, the smaller of said valves being slightly smaller than its opening and adapted to move bodily into and out of said opening to regulate the flow therethrough and the other of said valves being adapted to seat inv closed position, and a thermostat connected to operate saidvalves.

3. A thermostat valve unit comprising a casing having an inlet and two outlets, a rod secured to the casing at one end and extending through one of said outlet ports and forming a guide, a thermostat secured to the other end of'said rod, a cage surrounding saidy thermostat and secured to the free end thereof to be operated thereby, said cagek having a part guided by said rod, and valves on said cage cooperating with Said outlets.

4. A valve unit comprising a casing having a port, a rod secured to the casing and formmg a guide, a cage guided by said rod, a thermostat in said cage secured to the rod at one end and to the cage at the other end, and a valve on said cage for saidport.

5. A valve device comprising a casing having a port, a rod secured to the casing and extending through said port, a valve of less lof.

ldiameter than said'port sliding on said rod, 13g

momma Y and a thermostat connected to operate said 6. A valve device comprising a easing having a port, a rod secure-dto the -casing and extending through said port, a valve of less diameter than said port sliding' on said rod, and a thermostat supported by said'rod and connected to'operate said valve.

7. A valve device comprising a casing having af port, a rod secured tothe casing and extending through said port, a valve of less diameter than said port sliding on said rod, said valve being adapted to move into and out of said port to regulate the flow therethrough, and a thermostat connected to operate said valve.

8. A valve unitcomprising a casing having one end open and having an outlet chamber with a port near its other end, a rod secured to the casing andextending through said chamber, and port, a thermostat secured to said roi/'av cage surrounding said thermostat and secured to the free end thereof, a valve connected to said cage and controlling said port, and said cage controlling the open end of said casing.

9. A valve unit comprising a casing having an outlet chamber with a port, a rod secured to the casing. and extending through said chamber and port, a valve for said port sliding on said rod, a cage secured to said valve, and a thermostat in said cage and connected to said rod and said thermostat respectively.

10. A valve device comprising a casing having two outlet ports, valves for said ports, one of said valves being slightly smaller than its port and adapted to move bodily into and out of said port in regulating the flow therethrough, and the other of said valves being adapted to seat in closed position, means connecting said valves so that one is closed when the other is open and vice versa, and means for operating said valves.

11. A valve device comprising a casing having two separatedoutlet ports, interconnected valves for said ports arranged so that one valve opens as the yother closes and vice versa, and a thermostat arrangedin the cas-l ing in the space between the ports and connected to operate the valves.

12. A valve device comprising a casing having two separated outlet ports, valves for said ports, a cage arranged between the ports and connecting said valves so that one valve opens as the other valve closes and vice versa, and a thermostat in the cage and connected to operate the valves.

In testimony whereof I aiix my signature.

ORMOND E. HUNT. 

